ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
With rapidly increasing rates of contemporary extinction, predicting extinction vulnerability and identifying how multiple stressors drive non-random species loss have become key challenges in ecology. These assessments are crucial for avoiding the loss of key functional groups that sustain ecosystem ...
In this paper, we consider a stage structured model of a harvested fish population. The model is a continous-time system involving a nonlinear recruitment function. Using the generalization of Gronwall-Bellman lemma, we show how to act on the fishing effort in order to prevent the extinction of the ...
Sonar and Array Technologies have been developed over more than 100 years. This paper will give an exposition of this development with emphasis on the most recent one. However, tracks to earlier sonar types will be illuminated. Demands to sonar and arrays will be discussed, and an exposition will be ...
This article evaluates the effect of the choice of survey recruitment mode on the value of water quality in lakes, rivers, and streams. Four different modes are compared: bringing respondents to one central location after phone recruitment, mall intercepts in two states, national phone-mail survey, ...
Each related organization conducts various fishery investigations and collects data required for estimation of resource state. In the scallop culture industry in Abashiri, Japan, the fisheries are investigated by analyzing seabed images. Seabed images are now obtainable from catamaran technology. However, ...
In this paper, we propose a novel unsupervised algorithm for segmenting sidescan sonar images of seafloor. The proposed algorithm does not make any a priori assumption on the nature of the input sidescan sonar image. The algorithm first constructs a multiresolution representation of the input image ...
Dujiangyan Irrigation System lies on the Minjiang River in the northwest of Dujiangyan City Sichuan China. It was built over 2,200 years ago around 250 B.C. under the direction of LiBing, the governor of the Shu Prefecture of the Qin State. Construction of the Dujiangyan irrigation system began in the ...
The theorem of carrying out an empirical analysis on the relations between the rural finance and economic growth has already aroused widespread concerns of various countries' academia, this theorem's application, however, is quite rare in China, especially at the provincial level. Hunan, as an important ...
Background Long-chain n-3 polyunsaturated fatty acids (PUFAs) have immune regulating and anti-inflammatory effects. However, their role in allergic disease is unclear. Allergic diseases are immunologically heterogeneous, and we hypothesized that n-3 fatty acid composition in serum and breast milk may ...
A new type of electric boat named "RAICHO-I" has been created by Tokyo University of Marine Science and Technology. "RAICHO-I" utilizes a lithium-ion battery with a plug-in system or a quick charging system. "RAICHO-I" is the first electric boat adopted CHAdeMO standard which is the standard of quick ...
This article has been retracted by the publisher.
The quality security technology of reclaimed water reuse is studied in Northwest Ecological Economic zone of Changchun City. Based on the study, “Four Methods” series water treatment process is proposed, which is centralized sewage treatment plant, new technology process on pan-oxidation pond, ecology ...
Mass of micro algae propagated may produce harmful effects on marine ecological environment and fishery resources. The rapid and accurate identification and classification for micro algae is one of the important research issues in fisheries resource. In this paper, the comparative study of two segmentation ...
Background Anisakiasis is an important fish-borne zoonosis provoked by larval stages of nematodes belonging to the genus Anisakis. The detection and identification of human infections is difficult. This is due to: a) the low specificity of the clinical features and symptomatology related to human infections; ...
Background The study of speciation in the marine realm is challenging because of the apparent absence of physical barriers to dispersal, which are one of the main drivers of genetic diversity. Although phylogeographic studies using mitochondrial DNA (mtDNA) information often reveal significant genetic ...
Hazard Analysis and Critical Control Points (HACCP) systems are a risk based preventive approach developed to increase levels of food safety assurance. This is part 1 of a pilot study on the development, implementation and evaluation of a HACCP-based approach for the control of good udder health in ...
In the era of personalized medical practice, understanding the genetic basis of patient-specific adverse drug reaction (ADR) is a major challenge. Clozapine provides effective treatments for schizophrenia but its usage is limited because of life-threatening agranulocytosis. A recent high impact study ...
Arunachal Pradesh, the easternmost part of India, is endowed with diverse natural resources and inhabited by a variety of ethnic groups that have developed skills to exploit the biotic resources of the region for food and medicines. Information on animals and animal parts as components of folk remedies ...
Marine pelagic diazotrophic cyanobacteria of the genus Trichodesmium (Oscillatoriales) are widespread throughout the tropics and subtropics, and are particularly common in the waters of New Caledonia. Blooms of Trichodesmium are suspected to be a potential source of toxins in the ciguatera food chain ...
Background Anthropogenically-induced climate change can alter the current climatic habitat of non-native species and can have complex effects on potentially invasive species. Predictions of the potential distributions of invasive species under climate change will provide critical information for future ...